Automakers have been integrating wind deflectors into convertibles for years now, though in many cases, they're a do-it-yourself, manual affair. The idea is to disrupt the wind enough to eliminate that obnoxious swirling effect that kills conversations and hairstyles in equal measure.

The Motor City has been blessed with unseasonably warm weather and mostly clear skies this week, so consider it fortuitous that Porsche has gifted the Detroit Auto Show with the global premiere of its 911 Carrera Cabriolet.